According to the Costa (1997: xv-xvii), Stoicism that was founded by Zeno had the most influence to Seneca’s beliefs about philosophy. Therefore, his philosophy was inclined to the stoic system. He believes “… philosophy as a mistress was grounded on a belief that her end was the practical one of curing souls, of bringing peace and order to the feverish minds of men pursuing the wrong aims in life” (Campbell 2004: 19).
Moreover, he differed between philosophy and practical knowledge that discovered some techniques employed in everyday life (Seneca Letter XC Extract 7-11). Philosophy emphasizes the question of how to live well as a human being, while practical thought emphasizes the question of how to live easy. An illustration, modern achievements of engineering that are used now, for instance high building that can endanger a lot of people both inside and outside and keys and bolts on doors to protect the wealth, are not philosophy’s deeds, but practical thought’s (Seneca Letter XC Extract 7-11).
Seneca also believes that philosophy has an important role in human life in order to get a good life. As reported by Seneca (Letter XC Extract 26-27) “philosophy is a direction in which she opens routes and guides us”. Hence, only philosophy that can bring us to have a good life because “she will encourage us to submit to God with cheerfulness and to fortune with defiance; she will show you how to follow God and bear what